#include<stdio.h> // for standard input/output functions.#include<unistd.h> // for POSIX system calls and constants.#include<assert.h> // for assertion checks.#include<fcntl.h> // for file control options.#include<sys/types.h> // for data types used in system calls.// main function...
2 Introduction to Operating Systems If you are taking an undergraduate operating systems course, you should already have some idea of what a computer program does when it runs. If not, this book (and the corresponding course) is going to be difficult — so you should probably stop reading...
1.4 Operating System Structure Multiprogramming(Batch system) needed for efficiency Single user cannot keep CPU and I/O devices busy at all times Multiprogramming organizes jobs (code and data) so CPU always has one to executelA subset of total jobs in system is kept in memory One job selected...
As a control program, it serves two major functions: (1) supervision of the execution of user programs to prevent errors and improper use of the computer, and (2) management of the operation and control of I/O devices.作为一个控制程序,它主要提供两个功能:(1)监督用户程序的执行,以防止错误...
Introduction to Operating Systems ThirdEdition Chapter1 IntroductiontoOperatingSystems McGraw-Hill1 ©2012TheMcGraw-HillCompanies,Inc.Allrightsreserved.LearningObjectives LO1.1DescribethepurposeandfunctionsofoperatingsystemsLO1.2DescribemajoreventsintheevolutionofoperatingsystemsLO1.3Listandcomparethecommonoperating...
Operating System Concepts – 7th Edition, Jan 12, 20051.12Silberschatz, Galvin and Gagne ©2005Common Functions of InterruptsInterrupt transfers control to the interrupt service routine generally, through the interrupt vector, which contains the addresses of all the service routines....
Dowellonthehomeworkandexperiments Dowellonthefinalexam Attendclassandparticipate 1.3 SupplementsSupplements Scope:Chap.1--Chap.15 SlidesSource: orfromme^_^ Reference(Bibliographies): 《计算机操作系统》汤子赢编著西安电子科技大学出版社出版 《实用操作系统概念》AppliedOperatingSystemConcepts HigherEducationPress(Eng...
Because an operating system is large and complex, it must be created piece by piece. Each of these pieces should be a well-delineated portion of the system, with carefully defined inputs, outputs, and functions. In this chapter, we provide a general overview of the major components of an ...
OperatingSystem Chapter1:Introduction GuangShunShi DepartmentofComputerScience,NanKaiUniversity Email:gsshi@nankai.edu WebSite:http://202.113.15.72/osteach OperatingSystem CITS,NanKaiUniversity * ComputerScience:Why?What?How? WhydoyouchooseComputerScience?
This book also offers a basic orientation through the numerous tubes, lines and system components installed on a complex turbofan engine.\nWithin this book you will find information on the operation of engine systems, the functions of their components and the terminology used throughout the ...